<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<body>
<div th:fragment="nav">
    <nav class="navbar navbar-default" style="box-shadow:0 0 1px 0px rgba(0,0,0,0.3),0 0 6px 2px rgba(0,0,0,0.15);margin-bottom: 0;">
        <div class="container-fluid">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                    <span class="sr-only">BOKI</span>
                </button>
                <a class="navbar-brand" href="/">BOKI</a>
            </div>
            <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                <form class="navbar-form navbar-left" action="/" method="get">
                    <div class="form-group">
                        <input type="text" class="form-control" name="search" placeholder="搜索书名">
                    </div>
                    <button type="submit" class="btn btn-default">搜索</button>
                </form>
                <ul class="nav navbar-nav navbar-right">
                    <li class="dropdown" th:if="${session.user!=null}">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                           aria-expanded="false">
                            <span th:text="${session.user.getName()}"></span>
                            <span class="caret"></span>
                        </a>
                        <ul class="dropdown-menu">
                            <li><a href="/myboki">我的BOKI</a></li>
                            <li><a href="/admin_book" th:if="${session.user.authority>=1}">图书信息管理</a></li>
                            <li><a href="/admin_record" th:if="${session.user.authority>=1}">借阅信息管理</a></li>
                            <li><a href="/admin_user" th:if="${session.user.authority>=2}">用户信息管理</a></li>
                            <li><hr></li>
                            <li><a href="/logout">退出登录</a></li>
                        </ul>
                    </li>
                    <li th:if="${session.user==null}">
                        <a href="/login">登录</a>
                    </li>
                </ul>
            </div>
        </div>
    </nav>
</div>
</body>
</html>